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Wilmshurst JM, Anderson AJ, Higham TF, Worthy TH.Wilmshurst JM, et al.Proc Natl Acad Sci U S A. 2008 Jun 3;105(22):7676-80. doi: 10.1073/pnas.0801507105. Epub 2008 Jun 3.Proc Natl Acad Sci U S A. 2008.PMID: 18523023Free PMC article.
Wood JR, Wilmshurst JM, Richardson SJ, Rawlence NJ, Wagstaff SJ, Worthy TH, Cooper A.Wood JR, et al. Among authors: wilmshurst jm.Proc Natl Acad Sci U S A. 2013 Oct 15;110(42):16910-5. doi: 10.1073/pnas.1307700110. Epub 2013 Sep 30.Proc Natl Acad Sci U S A. 2013.PMID: 24082104Free PMC article.